Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 1
... CONTAINING powdered and pure Australian tantalite ( sp . gr . 7:24 ) , 205450 TABLE I. Acids precipitated from alkaline solution . Grms . TANTALUM , NIOBIUM , AND TITANIUM : OBSERVATIONS ON . * THESE BODies . By W. B. GILES , F.I.C. ...
... CONTAINING powdered and pure Australian tantalite ( sp . gr . 7:24 ) , 205450 TABLE I. Acids precipitated from alkaline solution . Grms . TANTALUM , NIOBIUM , AND TITANIUM : OBSERVATIONS ON . * THESE BODies . By W. B. GILES , F.I.C. ...
Strona 2
... containing tantalic acid gives rise to very slightly soluble salts , and is consequently objectionable . The effect of the boric acid is uncertain , but from what is known of its behaviour with tungstic acid and similar bodies it may be ...
... containing tantalic acid gives rise to very slightly soluble salts , and is consequently objectionable . The effect of the boric acid is uncertain , but from what is known of its behaviour with tungstic acid and similar bodies it may be ...
Strona 3
... containing these three acids require in some cases considerable corrections . These minerals contain very frequently as constituents other metals , such as tin , tungsten , lead , antimony , and germanium , and when such minerals are ...
... containing these three acids require in some cases considerable corrections . These minerals contain very frequently as constituents other metals , such as tin , tungsten , lead , antimony , and germanium , and when such minerals are ...
Strona 7
... contain 100 per cent halogen ) . This operation should be extended over at least thirty minutes . Toward the end of the ... containing 50 cc . of concentrated sulphuric acid per litre . The solution after bleaching is titrated to colour ...
... contain 100 per cent halogen ) . This operation should be extended over at least thirty minutes . Toward the end of the ... containing 50 cc . of concentrated sulphuric acid per litre . The solution after bleaching is titrated to colour ...
Strona 10
... containing caustic potash , barium hydroxide , and lime - water . allowing this carefully purified oxygen to enter at D and bubble through the system of flasks , rust appeared on the bright metal surfaces in five minutes or less , and ...
... containing caustic potash , barium hydroxide , and lime - water . allowing this carefully purified oxygen to enter at D and bubble through the system of flasks , rust appeared on the bright metal surfaces in five minutes or less , and ...
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acetic action alcohol alkali ammonia ammonium amount analysis antimony apparatus aqueous atomic weight B.Sc Bakelite barium boiling calcium calculated carbon cent Chem chemical Chemistry chloride colour columbite compounds concentration condensation containing copper crucible crystallisation decomposed derivatives determined dilute dioxide dissolved distilled effect electric electrodes electrolytic elements equation ether ethyl evaporated experiments extract filtered flask flour formed formula gases gives graphite grms guncotton heated hydrate hydrochloric acid hydrofluoric acid hydrogen hydroxide investigation iodine iron laboratory liquid metal method mgrm mineral mixture molecular molecules nitrate nitric acid nitrogen nitroglycerin observed obtained ordinary osmotic pressure oxalic oxalic acid oxide oxidised oxygen paper phenol platinum potassium precipitate prepared present Prof pure quantity radio-active radium reaction residue salt scandium shown silver Society sodium soluble solution solvent substance sulphate sulphide sulphuric acid tantalite tantalum tellurium temperature tion tube vapour volume yield